I compared meat to tobacco as a killer, but to be fair, in one way alone tobacco outshines meat as an evil: it is physically addictive. As we all know, tobacco companies have a history of trying to target their ads to teenagers in the frequently fulfilled hope that these young people will be in their thrall for the rest of their lives. Meat, by contrast, is in no way physically addictive. Eating it is merely a habit, one that people are socially conditioned to believe is normal, even healthy. Whether you choose to phase meat out of your diet slowly, over time, or to stop on a dime and become a vegetarian overnight, you won't suffer any real symptoms of "withdrawal.”.